rock penstemon

Noun rock penstemon has 1 sense

• rock penstemon(n = noun.plant) cliff penstemon, penstemon rupicola - one of the West's most beautiful wildflowers; large brilliant pink or rose flowers in many racemes above thick mats of stems and leaves; ledges and cliffs from Washington to California;
is a kind of wild flower, wildflower
is a member of genus penstemon, penstemon